huh,,,, something i never knew...
"Caesar salad was invented in the early 1920s by Caesar Cardini, an Italian chef who owned a restaurant in Tijuana, Mexico. He moved to Tijuana from California to avoid Prohibition, and it was here, on July 4th, 1924, where Caesar is believed to have invented the Caesar Salad."
i have to think the popularity has to do with Romaine lettuce, but restaurants also offer meaty additions (chicken usually... shrimp sometimes) quite frequently.
frankly, i don't see "wedge" too often, but i do know it's a thing.
Cobb seems popular locally, but i don't like them much.
i've been on a spinach salad trend recently. my last physical noted an iron deficiency, so i've been trying to fix that.